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The History of JVCKenwood

No other name is more synonymous with high fidelity audio electronics than Kenwood.  JVC is well known as in the video camera business and also in audio electronics.  By the merger of the two companies into JVCKenwood, they have created a powerhouse in the electronics...

Cellular Phones and Brain Tumors

The question arises about whether or not a cellular phone will causes brain tumors.  There have been many articles about the subject and there are experts on both sides of the question.  We all want to know what is real and what is not on the subject, so we will...

Cellular Phones vs. Two-Way Radio

The question arises about whether to use a cellular phone or a two-way radio system.  Each type of device was designed for a very different purpose, so what is the difference between the two devices?  Why should one use a two-way radio instead of a cellular phone when...

The History of Motorola

No other company is more synonymous with two-way radio than Motorola.  When people think of radio, they think Motorola.  Whenever a movie or television show features a scene that involves police, fire, search & rescue or other first responders, it seems like a...

Adjacent Channel Interference

INTRODUCTION Like any other technology, the history of radio is one that developed over time.  Radios started off being spark gap transmitters which contained radio energy over a wide range of frequencies.  Eventually a range of frequencies became referred to as a...

Family Radio (Walkie Talkie) Communications

A discussion of radio communications equipment for personal and family use

Exclusive vs. Shared Channels

The issue of exclusive channels is the most critical item in the design and implementation of advanced radio systems.  From a legal standpoint, all trunking formats in use today (except for SmartTrunk and Capacity Plus) requires the use of exclusive frequencies to...

Methods of Data Transport

Different types of data require a different type of network implementation.  The discussion in this article is based upon GPS data, but there are many other types of data that are sent over radio and cellular systems.  Each type of data is handled best by one...

Signaling Methods for Radio Systems

  There are many different signaling methods for different types of radio systems that have been developed over the years.  Each signaling system has its advantages which make the system work well for its designed purpose and has disadvantages which make the...

Conventional Radio

Land mobile radio (LMR) started in the 1930s and has made a lot of progress since that time.  Originally all LMR radios were one-way radios, because they could only talk in one direction.  The one-way radios would receive a message in the vehicle where a receiver was...

Radio Articles

  • Mount Lukens Aerial - Radio site towers
    Hiking Safely
    Our job is working on two way radio systems. In doing that we often drive to various mountain tops. What has also become common is for us to come to the rescue of hikers that are lost, exhausted, or …
  • JVC Kenwood Long Beach
    The History of JVCKenwood
    No other name is more synonymous with high fidelity audio electronics than Kenwood.  JVC is well known as in the video camera business and also in audio electronics.  By the merger of the two …
  • 5G-dangerous-cellular-subscriptions
    Cellular Phones and Brain Tumors
    The question arises about whether or not a cellular phone will causes brain tumors.  There have been many articles about the subject and there are experts on both sides of the question.  We all want …
  • Cell Phone
    Cellular Phones vs. Two-Way Radio
    The question arises about whether to use a cellular phone or a two-way radio system.  Each type of device was designed for a very different purpose, so what is the difference between the two …
  • Motorola Radio
    The History of Motorola
    No other company is more synonymous with two-way radio than Motorola.  When people think of radio, they think Motorola.  Whenever a movie or television show features a scene that involves police, …
  • Mark Abrams on KPVM News in Pahrump Nevada
    An interview about the expansion of our digital network in the desert areas. https://www.youtube.com/watch?v=BNeSurMTAdQ…
  • Kennwood NEXEDGE Trunked Radio System
    The NEXEDGE Generation II System
    It has been a long road starting in 2017 when we purchased the new Kenwood Gen II NEXEDGE system to upgrade our radio system.  We completed the last of the changeovers with customers and the tower …
  • Electromatic Spectrum
    Adjacent Channel Interference
    INTRODUCTION Like any other technology, the history of radio is one that developed over time.  Radios started off being spark gap transmitters which contained radio energy over a wide range of …
  • Family Radio Walkie Talkie
    Family Radio (Walkie Talkie) Communications
    A discussion of radio communications equipment for personal and family use
  • Frequency Spectrum
    Which Frequency Band is Best For You?
    The answer to this question is dependent upon a number of factors which include the type of radio system you operate, where you are attempting to cover, how many repeaters or base stations you need …
  • Mountain Top Antennas
    Exclusive vs. Shared Channels
    The issue of exclusive channels is the most critical item in the design and implementation of advanced radio systems.  From a legal standpoint, all trunking formats in use today (except for …
  • Radio Frustrations
    Radio Interference From Multiple Users On The Same Channel
    When one radio user is transmitting on a radio channel, another radio user can use the radio channel if they are in different areas where there is no coverage overlap.  Each radio user can use the …
  • Coverge of MRA digital radio network
    Methods of Data Transport
    Different types of data require a different type of network implementation.  The discussion in this article is based upon GPS data, but there are many other types of data that are sent over radio and …
  • MRA smoke signals
    Signaling Methods for Radio Systems
      There are many different signaling methods for different types of radio systems that have been developed over the years.  Each signaling system has its advantages which make the system work …
  • Damn Radio
    Controlling Antenna Site Interference
    Antenna site interference is a problem that has plagued the Land Mobile Radio communications business since the inception of two-way radio.  There are techniques for operating a clean antenna site so that each radio operates with little to no interference from each other at the site.  When properly implemented, these techniques can also reduce or eliminate interference from other radio sites.
  • MRA-Raycom Paramount Office
    Conventional Radio
    Land mobile radio (LMR) started in the 1930s and has made a lot of progress since that time.  Originally all LMR radios were one-way radios, because they could only talk in one direction.  The …
  • Kenwood Repeater system
    LTR Trunking
    A trunked radio system, as defined by the FCC is, “A method of operation in which a number of radio frequency channel pairs are assigned to mobiles and base stations in the system for use as a …
  • NX-3820
    The NEXEDGE Digital Advantage
    NEXEDGE digital was developed by Kenwood in 2008 based upon NXDN technology which was jointly developed by Kenwood and ICOM.  Both companies worked together to develop the NXDN digital technology …
  • Baker to Vegas, B2V pahrump Nevada 2019
    Why You Should Use MRA for Baker to Vegas Race
    Radio Coverage We have more coverage of the race course than anyone else.  We cover 98% of the race course, far more than anyone else.  Our coverage is better than anyone else because our system …
  • us frequency Allocation Chart
    Spectrum Issues for High Technology Radio Systems
    Explanation of shared frequencies. Shared frequencies are like the old party line phones.  When you would want to make a call, you would have to pick up the phone and listen to find out if some else …
  • Surveillance headset.
    Tips for Getting Better Performance from Your Radio
    Keep all transmissions brief and to the point so that everyone can use the radio. Avoid “radio checks’ with other persons unless you have a specific message to pass. Hold the portable radio by the …
  • Mt. Lukens -How far will my radio reach
    How far will my radio talk?
    “Long Range” is commonly used by radio manufacturers as part of the description for their product. Everybody wants “Long Range”, but there is no real definition for what …
  • Kenwood Rechargeable Battery KNB-47
    Battery Care
    The proper care of batteries in portable handheld radio system is typically the most significant problem experienced by the users of two-way radio systems.  Proper procedures with significantly …

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